diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index c990e8e..781c0ed 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -161,7 +161,7 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.3.0)
     minima (2.0.0)
     minitest (5.10.1)
     multipart-post (2.0.0)
@@ -184,10 +184,10 @@ GEM
       faraday (~> 0.8, < 1.0)
     terminal-table (1.7.3)
       unicode-display_width (~> 1.1.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.1.3)